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压力加工工艺是机械工业实现少、无切削的一个重要方法。国外在三十年代就出现冷挤压、冷锻技术,使标准件生产的材料利用率提高到85％。四十年代发展了精锻轴技术,五十年代出现了轧制技术,用来轧制钢球及轴承环等。六十年代出现了精锻叶片、伞齿轮,精锻后不再需要切削加工,发展到目前又比较广泛的采用精冲技术、挤压技术,进一步发展冷挤齿轮及花键等。近几年来超塑材料成形技术的发展为压力加工工艺开辟了新的途径。压力加工工艺发展到今天已经突破了毛坯生产的范围,目前许多用锻压方法生产出来的零件,精度和形状已经可
Pressure processing technology is the machinery industry to achieve less, no cutting an important method. Cold compression and cold forging technology emerged in foreign countries in the 1930s, raising the utilization of standard materials to 85%. Forty years of development forging forging technology, appeared in the 1950s rolling technology, used to roll steel balls and bearing rings. In the 1960s, forging blades and bevel gears were no longer needed for precision forging. At present, the development of precision punching technology and extrusion technology have been developed. Cold extrusion gears and splines are further developed. In recent years, the development of superplastic material forming technology has opened up a new way for the pressure processing technology. Pressure processing technology development has now exceeded the scope of rough production, many of the current forging methods to produce parts, accuracy and shape has been